Hot Water in Western Australia

Hot water systems play an important role in Western Australian homes, particularly in the state's southwest where winters are mild but still cool enough to require consistent hot water supply. Western Australia enjoys the highest solar exposure in the country, averaging 6.0 kWh/m²/day, making it one of the best regions in Australia for solar hot water performance. This exceptional sunshine allows households to significantly reduce their energy use by switching from traditional electric storage systems to solar or heat pump technologies. Heat pumps also perform extremely efficiently in WA's generally mild climate, providing a cost-effective alternative for properties where solar installation may be limited by roof space or orientation. With rising energy costs and a range of state and federal rebates available, more Western Australians are turning to efficient hot water solutions to lower their long-term running expenses.

When selecting a hot water system in Western Australia, households should consider system efficiency, installation requirements, available solar access, and overall lifecycle costs. Solar hot water is often the standout choice due to the state's abundant sunshine and reliable performance year-round, while heat pumps offer strong savings and quiet operation across most climates. Gas instantaneous systems remain common in established homes, providing consistent hot water where gas supply is already available. As households continue to transition away from older electric storage units, efficient hot water systems are becoming a key part of reducing energy bills and improving sustainability across the state